Polypheretima grandisetosa ( Thai , 1996 )

Nguyen, Tung T., Tran, Binh T. T. & Nguyen, Anh D., 2014, Earthworms of the ' acaecate' Pheretima group in Vietnam (Oligochaeta: Megascolecidae), with description of a new species from the Mekong delta, Zootaxa 3866 (1), pp. 105-121 : 115

publication ID

https://doi.org/ 10.11646/zootaxa.3866.1.5

publication LSID

lsid:zoobank.org:pub:A3620CFB-E223-479C-8A9B-FF84F30143CF

DOI

https://doi.org/10.5281/zenodo.6144718

persistent identifier

https://treatment.plazi.org/id/0F1A87E0-FFF1-FFB2-A8CA-FDB2F194FA9F

treatment provided by

Plazi

scientific name

Polypheretima grandisetosa ( Thai , 1996 )
status

 

Polypheretima grandisetosa ( Thai, 1996)

( Fig. 3 View FIGURE 3 )

Pheretima grandisetosa Thai, 1996: 3 , Fig. 2 View FIGURE 2 B.

Polypheretima grandisetosa — Nakamura 1999: 7; Blakemore 2007: 45.

Type material. Holotype: 1A (SORC-HV.223) Ba Ria-Vung Tau province, Conlon Island, slope near Datdoc Bay, 10m asl, 25 June 1989, coll. Thai Tran Bai. Paratype: 1A, same data as holotype ( Thai 1996).

Further material. 5A ( SORC), Ba Ria-Vung Tau province, Baycanh Island, 210m asl, 20 June 1989, coll. Thai Tran Bai ( Thai 1996).

Description. Body cylindrical, small size, unpigmented. Prostomium prolobous. First dorsal pore in 11/12. Setae all fine and regularly distributed on pre- and postclitellar segments, 60(16) in V, 54 in VI, 50 in VIII, 40+ 4 in XVIII, 44 in XXV, aa=1.52ab, zz=zy; segment VI with 4–6 enlarged setae on the dorsal side. Male pores on transversely oval porophores. No genital markings in both spermathecal and male regions. Spermathecal pores 2 pairs, ventral in furrows 5/6/7, about 0.25 body circumference apart. Metandric. Seminal vesicles in XII. Ovaries small in XIII. Last hearts in XIII. Intestine beginning at XVII, without caeca. Typhlosole simple, lamelliform, T=0.15. Septa 8/9/10 absent, 5/6/7/8 thickened. Pharyngeal micronephridia in 7/8. (Data from Thai 1996: 3–4.)

Records from Vietnam. Ba Ria-Vung Tau Province (Conlon Island; Baycanh Island).

Distribution. Only known from Vietnam.

Remarks. The species is relatively close to Polypheretima colonensis Thai, 1996 , but differs in smaller size and the presence of big setae in VI. Types were rechecked for this study.

Kingdom

Animalia

Phylum

Annelida

Class

Clitellata

Order

Opisthopora

Family

Megascolecidae

Genus

Polypheretima

Kingdom

Animalia

Phylum

Annelida

Class

Clitellata

Order

Opisthopora

Family

Megascolecidae

Genus

Pheretima

Loc

Polypheretima grandisetosa ( Thai , 1996 )

Nguyen, Tung T., Tran, Binh T. T. & Nguyen, Anh D. 2014
2014
Loc

Polypheretima grandisetosa

Blakemore 2007: 45
Nakamura 1999: 7
1999
Loc

Pheretima grandisetosa

Thai 1996: 3
1996
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